* {
    padding: 0;
    margin: 0;
  }
html,
body {
  background: url("bgi.jpg") no-repeat center center fixed;width: 100%;
  opacity: 0.9;
}
a {
  text-decoration: none;
}
.lunbo {
  width: 100%;
}
.content {
  width: 1241.08px;
  height: 600px;
  margin: 0 auto;
  position: relative;
}
#item {
  width: 1241.08px;
  height: 600px;
}
.item {
  position: absolute;
  opacity: 0;
  transition: all 1s;
}
.item.active {
  opacity: 1;
}
img {
  width: 1241.08px;
  height: 600px;
}
#btn-left {
  width: 30px;
  height: 69px;
  font-size: 30px;
  color: white;
  background-color: rgba(0, 0, 0, 0.4);
  line-height: 69px;
  padding-left: 5px;
  z-index: 10;
  /*始终显示在图片的上层*/
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-60%);
  /*使按钮向上偏移居中对齐*/
  cursor: pointer;
  opacity: 0;
  /*平时隐藏*/
}
.lunbo:hover #btn-left {
  /*鼠标滑入，显示图标*/
  opacity: 1;
}
#btn-right {
  width: 26px;
  height: 69px;
  font-size: 30px;
  color: white;
  background-color: rgba(0, 0, 0, 0.4);
  line-height: 69px;
  padding-left: 5px;
  z-index: 10;
  position: absolute;
  right: 0;
  top: 50%;
  cursor: pointer;
  opacity: 0;
  transform: translateY(-60%);
}
.lunbo:hover #btn-right {
  opacity: 1;
}
#circle {
  height: 20px;
  display: flex;
  position: absolute;
  bottom: 35px;
  right: 25px;
}
.circle {
  width: 10px;
  height: 10px;
  border-radius: 10px;
  border: 2px solid white;
  background: rgba(0, 0, 0, 0.4);
  cursor: pointer;
  margin: 5px;
}
.white {
  background-color: #FFFFFF;
}
.nav1{
  margin-left: 307px;
  width: 1241px;
  font-size: 28px;
  background-color: cyan;
  opacity: 0.9;
  z-index: 5;
  position: relative;
}
.nav1 ul{
  width: 600px;
  height: 50px;
  padding: 0 ;
}
.nav1 ul li{
 float: left;
  list-style: none;
  text-align: center;
  width: 120px;
  height: 50px;
  padding: auto;
  position: relative;
}
.nav1 ul li a{
  padding: auto;
}
.nav1 ul li:hover ul{
  display: block;
  color: tomato;
}
.nav1 ul li ul{
  font-size: 25px;
  width: 120px;
  height: 80px;
  display: none;
  opacity: 0.9;
  padding: 0 ;
  position: absolute;
 
}
.nav1 ul li ul li{
  padding: auto;
  list-style: none;
  width: 120px;
  height: 80px;
  z-index: 100;
  background-color: rgba(61, 144, 221, 0.986);
  }
.nav1 ul li ul li:hover{
      background-color: chocolate;
  }
  .sections .section {
    width: 1241.08px;
    height: 450px;
    background: #fff;
    margin: 0 auto;
    justify-content: space-around;
  }
  .sections .section .nav {
    width: 900px;
    height: 425px;
    margin: 0 auto;
    box-shadow: 0 0 4px #ddd;
    border: 1px solid #ddd;
    background: #fff;
  }
  .sections .section .nav h2 {
    width: 780px;
    font-size: 1.4em;
    font-weight: 700;
    font-family: 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.4em;
    text-transform: none;
    padding: 0.3em 0;
    border-bottom: 2px solid #5ca05f;
    margin: 10px auto;
  }
  .sections .section .nav h2 a {
    color: #333;
  }
  .sections .section .nav .postmeta {
    width: 780px;
    display: block;
    color: #333;
    margin: 0 auto;
    padding: 0.7em 0.1em;
    background: #fff;
  }
  .sections .section .nav .entry {
    width: 780px;
    line-height: 1.6em;
    margin: 0.5em 0;
    margin: 0 auto;
  }
  .sections .section .nav .entry p {
    display: block;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    color: #333;
  }
.table img{
    box-shadow: 0 0 4px  #888888;
    width: 200px;height: 300px;
}
  table,tr,th,td{
    font-size: 16px;
    border:1px solid   ;
    border-collapse: collapse;}
table{
    text-align: center;
    width:70.5%;
    margin: auto;
    width: 1241px;
}
tr,th,td{
    font-size: 20px;
}
td{
    padding-bottom: 10px;
}
table img{
    box-shadow: 10px 6px 10px 5px #888888;
    opacity: 1;
}
.jo3{
    background-color: blueviolet;
}
.kqyin{
    background-color: green;
}
.bobo{
    background-color: silver;
}
.jo2{
    background-color: purple;
}
.abdd{
    background-color: red;
}
.yiqi{
    background-color: slateblue;
}
.dio{
    background-color: yellow;
}
.h2{
    text-align: center;
}
